• Journal of the Institute of Electronics Engineers of Korea TE
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• v.37 no.5
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• pp.125-131
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• 2000

In this paper, we proposed conditional access algorithm for data confidential using smart card. This algorithm is constructed smart card and E-mail gateway for restricting of user's illegal confidential data transmission. After processing of certification procedure in smart card, each E-mail forwarded to E-mail gateway(EG). The EG selects outgoing E-mail and it is sent to fire-wall E-mail processing program, it is checked attached file in transmission mail and if it is attached file, it writes to database. This time, it can be used evidence data about user's illegal confidential data transmission, because of using registered content and smart card certification data in database. in addition to, we can get psychologically effect of prevention to send illegally, and this system can prevent spam mail in EG, also.

• The Journal of Society for e-Business Studies
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• v.9 no.1
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• pp.303-320
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• 2004

Smart card is a useful tool used in electronic payment systems and it is very important to test whether a smart card operates correctly. In this paper, we analyze previous researches on testing smart cards, such as ISO/IEC and KS standard documents, and Guideline of Card Quality Test. We also propose the functional test results done on the Highpassplus card of Korea Highway Corporation. By testing the Hipgpassplus card we can get card systems with reliable functionality and security. Furthermore, this can help developing more reliable security systems. The test results of the Highpassplus card proposed in this paper are the first research on testing smart cards in services in Korea and we expect that the test methods of smart card will be advanced based on our results.

• The Journal of Korean Association of Computer Education
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• v.10 no.3
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• pp.57-66
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• 2007

E-mail system is considered as a most important communication media, which can be used to transmit personal information by internet. But e-mail attack also has been increased by spoofing e-mail sender address. Therefore, this work proposes sender verification faculty for spam mail protection at sender's MTA by using security card for protection forged sender and also for authenticating legal sender. Sender's mail MT A requests security card's code number to sender. Then sender input code number and generate session key after sender verification. Session key is used to encrypt sender's signature and secure message transmission. This work can provide efficient and secure e-mail sender authentication with sender verification and message encryption.

• Journal of Computing Science and Engineering
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• v.5 no.1
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• pp.51-70
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• 2011

This paper introduces a new credit card payment scheme called No Number Credit Card that can significantly reduce the possibility of credit card fraud. The proposed payment system is loosely based on Kerberos, a cryptographic framework that has stood the test of time. In No Number Credit Card, instead of card numbers, only payment tokens are exchanged between the customers and merchants. The tokens are generated based on the payment amount, payment type, client information, and merchant information. However, it does not contain the credit card number, so the merchant or a database hacker cannot acquire and illegally use any credit card numbers. The No Number Credit Card system is ideal for online e-commerce transactions and can be used with any credit card that users possess. It can be used with minor modifications to the current card payment system. We provide the principles of its operation through scenario analysis, a sample implementation, and a security analysis

• International journal of advanced smart convergence
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• v.11 no.1
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• pp.64-69
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• 2022

The current research examines whether consumers' preference for credit card benefits (i.e., general credit card benefits vs. credit card benefits related to green life) differs according to their pro-environmental disposition. Specifically, we predict that for consumers with high (vs. low) pro-environmental disposition, their preference for credit card benefits related to green life will be higher, while preference for general credit card benefits will not be different between low and high pro-environmental disposition groups. An online survey (N = 487) was conducted to test the hypotheses. Consistent with the hypotheses, the results indicate that (1) respondents with high pro-environmental donation intention, as compared to those with low pro-environmental donation intention, had higher preference for credit card benefits related to green life; and (2) there was no significant difference in preference for general credit card benefits between high and low pro-environmental donation intention groups. We suggest an important insight into how credit card companies approaching ESG issues can increase their consumers' preference for credit card benefits relevant to green life, considering consumers' individual differences such as pro-environmental disposition.

• Journal of Advanced Navigation Technology
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• v.14 no.1
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• pp.27-32
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• 2010

In this paper, we research a virtual card generation system to secure e-commerce. Network security has increased the need to meet rapidly growing trend. And the amount and quality of e-commerce expansion due to the need for secure commerce transactions has increased even more. Instead of exposing the actual credit card number, we expose a virtual card number on the network. It can prevent the risk of hacking. We proved that through various experiments.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.121-126
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• 2001

1. TP 상용화 시 준비사항 ◈ E&M card로 연동하기위한 PBX의 보유 여부 확인 ◈ TP의 PBX타입이 E＆M을 지원하는지의 여부 확인. ◈ TP의 PBX타입이 E&M을 지원하지않는다면 E&M card의 설치여부결정. ◈ 최소 라우터 사양 CISCO 1750 (E＆M포트 2개 지원) 2. 전화번호체계에 대한 정책 ◈ 기존 일반 전화 활용 ㆍ기존 엑세스 코드에서 VoIP망에 대한 엑세스 코드만 정의하면 됨. ㆍ전화번호를 따로 관리할 필요가 없음. ◈ 새로운 전화번호 활용 ㆍKNX 차원의 전체적인 번호체계를 별도로 수립 CEPO나 KNXO에서Gatekeeper적용 3. QoS ◈ 사용자의 DATA와 Voice에 대한 중요도 조사 후 적용 범위 결정(중략)

• The Journal of Information Technology
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• v.3 no.4
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• pp.23-40
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• 2000

Because the international trading community has witnessed a number of significant technical and commercial changes, documentary credit practices will quite clearly need to be updated to meet both the business and technical demands of the latest commercial and technical developments in international trade. The potential for developing "paperless credit" should, therefore, be examined. TradeCard is a B2B(business-to-business) e-commerce infrastructure that enables buyers and sellers to conduct and settle international trade transactions securely over the Internet and objective of TradeCard is to provide a secure, reliable cost-effective and user-friendly solution for conducting and settling international trade transactions. This paper analyzes the reviews of TradeCard by Electronic Message and the various problems which come to application of TradeCard, with particular attention to existing international frameworks for Payment systems based on Documentary Credit.ry Credit.

• International Journal of Internet, Broadcasting and Communication
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• v.10 no.4
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• pp.25-30
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• 2018

When producing a business card, there is always a risk for exposing personal information as the information from the business card application is saved in the computer of the printing agency. The information that goes into the business card application file, such as name, mobile phone number, and e-mail address is not encrypted, which makes it easy to access. This study was conducted in order to find a way to automatize the business card application process by encrypting the information entered into the business card application file, simplifying the business card application process, minimizing the workload and by directly linking to the print shop to remove the print file after completing the printing of the business card.

• The Journal of Information Technology
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• v.4 no.4
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• pp.113-128
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• 2001

The international trade industry is on the brink of a radical Internet-driven transformation. TradeCard is a payment and settlement system that is an alternative to letters of crdeit. That is, TradeCard is a business-to-business e-commerce infrastructure that enables buyers and sellers to conduct and settle international trade transactions securely over the Internet. Paperless, payment-guaranteed international trade transactions - which eliminate the traditional letters of credit with electronic certifications - are widely considered the most difficult B2B transactions to conduct. The TradeCard system was initially built to accommodate and process this complex, cross-border payment type at a US$100 service fee for each transaction of up to US$100,000 since November 1999.